Most recent update from the machine shop. Here are the stock N54 cylinder head numbers followed by numbers with only work in the bowl, and then additional work with larger exhaust valves. Numbers are VERY exciting. There is 35+% more flow on the intake side and 13.5% on the exhaust side.
Shop is working with Ferrea to get custom +1mm oversized Super Alloy valves capable of supporting sustained high temperatures on the exhaust side. One of my stock exhaust valves has been shipped out along with the spring and retainer and we are expecting word from Ferrea on the recommended way to go this week.
Similar News
View All NewsDzenan Becic
bootmod3 on YouTube: DATA LOGGING - EXPLAINED
In this episode we go in detail on bootmod3 data logging! We will try to answer all of your questions related to this topic. That being said, go grab a coffee or popcorn since this episode is slightly longer than the other ones!
Dzenan Becic
bootmod3 on YouTube: 1100WHP BMW Z4 M40i - GEN2 B58
In this episode we are going to talk about one of our shop development cars we are building, our 2020 BMW Z4 M40i that pushes around 1100WHP!
